OEM Mercury Montego Heater Core

Mercury Montego Heater Core Parts Questions & Experts Answers

• Heater Core
  H2MZ-18476-T
  Q: How to Service and Repair a Heater Core on Mercury Montego?

  A: A pressure leak test must come first when servicing the heater core but only proceed if there is a reason to believe leaks exist. The first step requires the instrument panel cross beam and the dash panel seal to be detached from the heater core tubes. You must first remove two screws which retain the heater core tube bracket and then separate the bracket from its position. The first step includes removing power from the evaporator discharge air temperature sensor before disconnecting the LH temperature Blend Door Actuator connector. The LH temperature blend door actuator requires removal of three screws before taking out the actuator unit. The first step is to unscrew the three screws at the heater core cover followed by removing the cover itself. Finally, remove the heater core. The process of heater core installation involves performing the opposite operations which were used for removal.